Supreme Court allows controversial Arizona immigration law

The US Supreme court has dealt a big blow to Arizona's controversial immigration law - striking down three of the four main components. The court did alllow the main portion of the law to stand - which requires police to check the immigration status of people they've detained if a "reasonable suspicion" exists the person is in the country illegally. With immigration one of the hot button issues in the upcoming presidential election - this ruling is expected to have an impact on the campaign.